modprobe -r brd
modprobe brd rd_nr=4 rd_size=12582912
dmsetup remove_all
wipefs -a --force /dev/ram0
wipefs -a --force /dev/ram1
wipefs -a --force /dev/ram2
wipefs -a --force /dev/ram3
mdadm -q --create /dev/md0 --chunk=256 --level=raid0 --raid-devices=4 --force --assume-clean /dev/ram0 /dev/ram1 /dev/ram2 /dev/ram3
wipefs -a --force /dev/md0
mkfs -t xfs -f -mreflink=0 /dev/md0
mkdir -p /fs/md0
modprobe xfs
mount -t xfs -o inode64 /dev/md0 /fs/md0

for cpu_dir in /sys/devices/system/cpu/cpu[0-9]*
do
	online_file="$cpu_dir"/online
	[ -f "$online_file" ] && [ "$(cat "$online_file")" -eq 0 ] && continue

	file="$cpu_dir"/cpufreq/scaling_governor
	[ -f "$file" ] && echo "performance" > "$file"
done

echo "500 32000 128 512" > /proc/sys/kernel/sem
cat > workfile <<EOF
FILESIZE: 1M
POOLSIZE: 10M
10 sync_disk_rw
EOF
echo "/fs/md0" > config

	(
		echo lkp-csl-2sp3
		echo sync_disk_rw

		echo 1
		echo 300
		echo 2
		echo 300
		echo 1
	) | ./multitask -t &